聚合物稳定胆甾相滤色液晶光阀的显示研究

胡金良; 徐超; 吴少君; 陆红波

doi:10.3788/YJYXS20163104.0347

您当前的位置：

首页 >

文章列表页 >

聚合物稳定胆甾相滤色液晶光阀的显示研究

材料与器件 | 更新时间：2020-08-12

- 聚合物稳定胆甾相滤色液晶光阀的显示研究
- Color-filtering liquid crystal switch based on polymer-stabilized cholesteric texture
- 液晶与显示 2016年31卷第4期页码：347-352
- 作者机构：
  
  1. 特种显示技术教育部重点实验室特种显示技术国家工程实验室, 现代特种显示技术省部共建重点实验室培育基地,安徽合肥,230009
  2. 合肥工业大学化学与化工学院,安徽合肥,230009
- 作者简介：
- 基金信息：
  
  国家高技术研究发展计划(863计划)(No.2012AA011901)();国家自然科学基金(No.61107014)();科技部973计划前研专项(No.2012CB
- DOI：10.3788/YJYXS20163104.0347
  中图分类号： O753+.2
- 收稿日期：2015-11-17，
  
  修回日期：2015-12-25，
  
  纸质出版日期：2016-04-05
- 稿件说明：
移动端阅览
胡金良, 徐超, 吴少君等. 聚合物稳定胆甾相滤色液晶光阀的显示研究[J]. 液晶与显示, 2016,31(4): 347-352

HU Jin-liang, XU Chao, WU Shao-jun etc. Color-filtering liquid crystal switch based on polymer-stabilized cholesteric texture[J]. , 2016,31(4): 347-352
胡金良, 徐超, 吴少君等. 聚合物稳定胆甾相滤色液晶光阀的显示研究[J]. 液晶与显示, 2016,31(4): 347-352 DOI： 10.3788/YJYXS20163104.0347.

HU Jin-liang, XU Chao, WU Shao-jun etc. Color-filtering liquid crystal switch based on polymer-stabilized cholesteric texture[J]. , 2016,31(4): 347-352 DOI： 10.3788/YJYXS20163104.0347.

摘要

本文研究了在平面态和场致向列相之间快速切换的聚合物稳定胆甾相(PSCT)液晶光阀的彩色显示。采用紫外光诱导相分离法(PIPS)制备具有染料掺杂的聚合物稳定胆甾相液晶光阀

通过3种染料在可见光区的吸收作用

对入射白光进行选择性吸收过滤

得到不同颜色的出射光。结果表明:当PSCT处在平面态下

分子螺旋排列

染料对入射光波的吸收不受光波偏振方向的影响

器件具有很强的吸收作用

呈现有色态;当处于场致向列相

染料的吸收作用微小

器件呈透明态

因此器件具有一定的对比度

且不需要偏振片;器件在平面态和场致向列相之间快速切换的响应时间短于7 ms。PSCT光阀可以用作滤色器

在多种染料的共同作用下

快速选择滤色得到多种彩色可见光

组成彩色显示平面。

Abstract

A color-filtering liquid crystal shutter was investigated basing on polymer-stabilized cholesteric texture (PSCT) doped with dichroic dye. The PSCT with dye-doped liquid crystals was prepared by means of polymerization induced phase separation (PIPS). With the absorbing effect of three kind dyes in visible region

the different colors of the emergent light were obtained by the selective absorption and filtering to the white incident light. The results indicate that the absorption of dye in the planar state was enhanced because of the periodic helical texture

leading to the independence on the polarizers. The PSCT performed the color state while the PSCT was transparent in the homeotropic state. The PSCT had intrinsic contrast ratio and didn't need the polarizers. The PSCT could switch rapidly between the planar state and the homeotropic state with the respond time shorter than 7 ms. The PSCTs could be used for the color-filtering devices. Under the co-effect of three kind dyes

a colorful display consisted of the different emergent light is gained.

关键词

Keywords

references

JIN H J, KIM K H, JIN H L, et al. Dye-doped liquid crystal device switchable between reflective and transmissive modes[J]. Journal of Information Display, 2011, 12(1):17-21.

LI F S, WANG L, SUN W P, et al. Dye induced great enhancement of broadband reflection from polymer stabilized cholesteric liquid crystals[J]. Polymers for Advanced Technologies, 2012, 23(2):143-148.

HEILMEIER G H, CASTELLANO J A, ZANONI L A. Guest-host interactions in nematic liquid crystals[J]. Molecular Crystals, 1969, 8(1):293-304.

WHITE D L, TAYLOR G N. New absorptive mode reflective liquid-crystal display device[J]. Journal of Applied Physics, 1974, 45(11):4718-4723.

TENG W Y, JENG S C, KUO C W, et al. Nanoparticles-doped guest-host liquid crystal displays[J]. Optics Letters, 2008, 33(15):1663-1665.

LIN Y H, YANG C M. A polarizer-free three step switch using distinct dye-doped liquid crystal gels[J]. Applied Physics Letters, 2009, 94(14):143504.

KUMAR P, NEERA J, KANG S W, et al. Analysis of dichroic dye-doped polymer-dispersed liquid crystal materials for display devices[J]. Thin Solid Films, 2011, 520(1):457-463.

HURLEY S, MA J, YANG D K. P-108:A flexible display using dye-doped PSCT[J]. SID Symposium Digest of Technical Papers, 2009, 40(1):1520-1523.

LEE G H, HWANG K Y, JANG J E, et al. Characteristics of color optical shutter with dye-doped polymer network liquid crystal[J]. Optics Letters, 2011, 36(5):754-756.

WANG C T, LIN T H. Bistable reflective polarizer-free optical switch based on dye-doped cholesteric liquid crystal[Invited] [J]. Optical Materials Express, 2011, 1(8):1457-1462.

LU H B, SONG Z G, ZHANG J, et al. The influence of helical twisting power on the electro-optical properties of reverse-mode polymer-stabilised cholesteric texture[J]. Liquid Crystals, 2014, 41(4):615-620.

WANG C T, WU Y C, LIN T H. Photo-controllable tristable optical switch based on dye-doped liquid crystal[J]. Dyes and Pigments, 2014, 103:21-24.

DIERKING I, KOSBAR L L, AFZALI-ARDAKANI A. Network morphology of polymer stabilized liquid crystals[J]. Applied Physics Letters, 1997, 71(17):2454-2456.

张俊, 宋志刚, 熊贤风, 等. 聚合网络的锚定作用对聚合物稳定胆甾相液晶光电性能的影响[J]. 液晶与显示, 2013, 28(5):674-678. ZHANG J, SONG Z G, XIONG X F, et al. Influence of anchoring effect of polymer network on electro-optic property of polymer-stabilized cholesteric texture[J]. Chinese Journal of Liquid Crystals and Displays, 2013, 28(5):674-678. (in Chinese)

HUANG C Y, KE S W, CHIH Y S. Electro-optical performance of polymer stabilized cholesteric texture cell:The influence of chiral dopant and monomer concentration[J]. Optics Communications, 2006, 266(1):198-202.

YIN Y H, LI W B, CAO H, et al. Effects of monomer structure on the morphology of polymer network and the electro-optical property of reverse-mode polymer-stabilized cholesteric texture[J]. Journal of Applied Polymer Science, 2009, 111(3):1353-1357.

DIERKING I. Polymer network-stabilized liquid crystals[J]. Advanced Materials, 2000, 12(3):167-181.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

聚合电场波形对聚合物稳定胆甾相液晶光电性能的影响

聚合网络的锚定作用对聚合物稳定胆甾相液晶光电性能的影响